274949947 has 2 divisors, whose sum is σ = 274949948. Its totient is φ = 274949946.

The previous prime is 274949929. The next prime is 274949989. The reversal of 274949947 is 749949472.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274949947 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (274959947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137474973 + 137474974.

It is an arithmetic number, because the mean of its divisors is an integer number (137474974).

Almost surely, 2^274949947 is an apocalyptic number.

274949947 is a deficient number, since it is larger than the sum of its proper divisors (1).

274949947 is an equidigital number, since it uses as much as digits as its factorization.

274949947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 55.

The square root of 274949947 is about 16581.6147283671. The cubic root of 274949947 is about 650.2562673932.

The spelling of 274949947 in words is "two hundred seventy-four million, nine hundred forty-nine thousand, nine hundred forty-seven".